What do I need to watch out for when doing this upgrade? I know that I need to upgrade my licenses using the PUT tool, etc but is the install straight forward drop DVD in and install to inactive partition then flip over? or is it going to be like it was when I upgraded from 3.1 to 3.3 where I have to backup the system, wipe the OS, install the CM then restore....
just insert the media where the upgrade is and use the OS admin to install it, once it's installed on all servers start switching partitions. you don't need to wipe out the box for the upgrade
Table 4 Supported Cisco Unified Communications Manager Upgrades for Release 5.x and Release 6.x
if this helps, please rate